Block for electrical circuitry assembly kits



FIG. 1 is a perspective view of a block for electrical circuitry assembly kits showing my design;

FIG. 2 is a side view of the block of FIG. 1;

FIG. 3 is a top view of the block of FIG. 2;

FIG. 4 is a bottom view of the block of FIG. 2; and

FIG. 5 is a side view of the block of FIG. 2 (both sides being identical). 

The ornamental design for a block for electrical circuitry assembly kits, as shown and described. 